uc_volume_create

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The readOnlyHint annotation (false) already indicates a write operation, and the description merely repeats 'Create a volume'. No additional behavioral traits (e.g., idempotency, permissions, side effects) are disclosed beyond what the annotation provides.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single sentence with no wasted words. It includes the API endpoint for reference, which is concise and adds value, though it lacks structured formatting.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given 9 parameters, a complex schema, and multiple sibling tools, the description is severely lacking. It does not explain prerequisites, return values (despite an output schema), or how to use the tool effectively, making it incomplete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is only 44%, meaning many parameters lack descriptions. The tool description adds no information about parameters, leaving the agent with incomplete understanding of required fields like 'storage_root', 'owner', 'options', and 'tags'.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description states 'Create a volume' with the API endpoint, which clearly indicates the action and resource. It distinguishes from sibling tools like uc_volume_delete or uc_volume_get by the verb 'create', though it does not elaborate on scope or uniqueness.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool vs alternatives. The description does not specify prerequisites, context, or exclusions, leaving the agent to infer usage solely from the tool name.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.